Vessels on Iris.
نویسندگان
چکیده
منابع مشابه
Spontaneous hyphaema with abnormal iris vessels.
A woman aged 42 was examined in the Casualty Department of the Royal Eye Hospital, London, at 8.30 p.m. on June 30, 1956. She complained of slight blurring of right vision associated with a little pain which had begun 7 hours before. This had never occurred previously. There was no history of physical strain or excitement, nor was there any relevant family or personal history concerning her ocu...
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The authors have studied the distribution of anionic and cationic sites on both luminal and abluminal endothelial aspects of iridial vessels in Macaca mulatta and Macaca fascicularis. With the animals in general anesthesia, anionic ferritin (AF) and cationic ferritin (CF) were either injected intravenam or perfused at known intraocular pressure (15-20 mmHg) through the anterior chamber. AF intr...
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When horseradish peroxidase (HRP) is introduced into the blood stream it is retained in the lumen of the iridial vessels. In this paper, we report that when the same tracer is perfused into the anterior chamber of macaque monkeys, it permeates the stroma of the iris and penetrates the lumen of iridial vessels by transcellular vesicular transport. This unidirectional movement of HRP out of the e...
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This study reports the results of a systematic analysis of the iris vasculature in Macaca mulatta. Through the application of a variety of morphologic procedures it has been demonstrated that in rhesus monkeys, all iridial vessels, regardless of their diameter, have a similar structure. Their walls consist of (1) endothelial cells in a continuous layer resting on a basal lamina, which are provi...
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A new iris recognition method based on a robust iris segmentation approach is presented in this paper for improving iris recognition performance. The robust iris segmentation approach applies power-law transformations for more accurate detection of the pupil region, which significantly reduces the candidate limbic boundary search space for increasing detection accuracy and efficiency. The limbi...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1920
ISSN: 0035-9157
DOI: 10.1177/003591572001301715